Table of Contents

Overview

Pixel-Perfect Fog Of War

What is Pixel-Perfect Fog Of War?

Pixel-Perfect Fog Of War is a dynamic line-of-sight Fog of War solution for Unity. Revealers cast rays to compute true line of sight around obstacles, and the fog is rendered as a full-screen camera effect that stays perfectly sharp at any world size — there is no fog texture to run out of resolution.

It works in both 2D and 3D, supports the Built-In, URP, and HDRP render pipelines, and uses Unity's Burst, Jobs, Collections, and Mathematics packages to keep line-of-sight calculations fast even with many revealers.

How It Works

The system has three core pieces:

  • Fog Of War World — a single manager component in your scene. It owns all global fog settings, drives revealer updates, and renders the fog.
  • Revealers — objects that reveal the fog around them based on line of sight. Vision is shaped by radius, angle, height, and occlusion.
  • Hiders — objects that are hidden when they fall outside every revealer's line of sight (enemy units, loot, etc.).

The fog itself can be sampled two ways — Pixel-Perfect (per-pixel, unlimited world size) or Texture Storage (render-texture backed, enabling memory/regrow effects). See Fog Sample Modes.

Key Features

  • Pixel-perfect, resolution-independent fog that stays sharp at any world scale
  • Burst-accelerated raycast line of sight with accurate edge and corner detection
  • 2D and 3D support, with selectable game-plane orientation (XZ / XY / ZY)
  • Built-In, URP, and HDRP render pipeline support
  • Multiple fog appearances — Solid Color, Grayscale, Blur, Texture, and Outline
  • Hard and Soft fog, with edge softening, pixelation, and dithering
  • Hiders — hide objects outside line of sight, with built-in and custom behaviors
  • Fog regrow & revealer fading (Texture Storage mode) for fog-of-war "memory"
  • Minimap texture generation for UI maps
  • Save / load of explored fog state
  • Scales to thousands of revealers with spatial acceleration, time-sliced updates, static revealers, and staged GPU uploads

Supported Platforms

Capability Support
Render Pipelines Built-In (Legacy), URP, HDRP
Dimensions 2D and 3D
Unity Version 2019+ (latest LTS recommended)
Dependencies Burst, Collections, Mathematics
Note

URP and HDRP support is installed from the included FOW-URP and FOW-HDRP packages. See Render Pipeline Setup.

Requirements

  • Unity Version: 2019.4 or newer
  • Packages: Burst, Collections, and Mathematics (installed via the Package Manager)
  • Render Pipeline: Built-In, URP, or HDRP

Support the Developer

Pixel-Perfect Fog Of War is built by a small creator. If you enjoy it, please consider leaving a review on the Asset Store — it makes a huge difference. You can also wishlist Super Ultimate Party Game on Steam to show your support.

Need help? See Support to join the Discord.